diff options
| author | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-05-15 15:50:43 +0200 |
|---|---|---|
| committer | Jacob Erlbeck <jerlbeck@sysmocom.de> | 2015-05-21 17:10:42 +0200 |
| commit | 939904672961fa7e28397e27f942a7d1fff4bbdf (patch) | |
| tree | f17d491b73f8c54982da96a2431b45e8d98f6000 /src/tbf.h | |
| parent | e43460b50fc152026ab96b5095b94fbac6939ab2 (diff) | |
ms: Support new and old TLLIs
According to the specification (GSM 04.08/24.008, 4.7.1.5) after a
new P-TMSI has been assigned, the old P-TMSI must be kept basically
until it has been used by both sides. Since the TLLI will be derived
from the P-TMSI, the old TLLI must also be kept until the new TLLI
has been used by both MS and SGSN.
This commit modifies the TLLI handling of GprsMs accordingly.
set_tlli() is only used with TLLIs derived from MS messages,
confirm_tlli() is used with TLLIs derived from messages received from
the SGSN. tlli() returns the value set by the MS. check_tlli()
matches each of the TLLI used by either MS or SGSN as well as the old
TLLI until it has been confirmed.
Sponsored-by: On-Waves ehf
Diffstat (limited to 'src/tbf.h')
| -rw-r--r-- | src/tbf.h | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -328,7 +328,8 @@ struct gprs_rlcmac_dl_tbf : public gprs_rlcmac_tbf { /* dispatch Unitdata.DL messages */ static int handle(struct gprs_rlcmac_bts *bts, - const uint32_t tlli, const char *imsi, const uint8_t ms_class, + const uint32_t tlli, const uint32_t old_tlli, + const char *imsi, const uint8_t ms_class, const uint16_t delay_csec, const uint8_t *data, const uint16_t len); int append_data(const uint8_t ms_class, |